HDSL4 is the only DS-1transport technology that is spectrally compatible with ADSL when deployed beyond 12kft on 24 AWG.. HDSL4 extends spectrally compatible DS-1 service beyond CSA rang
Trang 1DS-1 Service Modules
Benefits:
• Spectral compliance HDSL4 is the only DS-1transport technology that is spectrally compatible with ADSL when deployed beyond 12kft on 24 AWG
• Extended range without repeaters HDSL4 extends spectrally compatible DS-1 service beyond
CSA range to 16kft on 24 AWG
• Extended range with repeaters With two repeaters, HDSL4 extends spectrally compatible
DS-1 service range to 46kft on 24 AWG
• Cost savings Fewer repeaters reduce equipment, installation and maintenance costs
Extending DS-1 reach while maintaining spectral compatibility with xDSL services poses challenges for service providers Crosstalk interference between copper pairs in the same bundle limits deployment of popular ADSL services to the Carrier Service Area (CSA) range
of 12kft Still, customers want more bandwidth and more service – while demanding increased reliability and performance Add-in regulatory concerns in leasing unbundled copper, and service providers clearly require a solution that transcends HDSL and HDSL2 technology
Soneplex/HiGain HDSL4 from ADC offers both extended range and spectral compatibility with such services as ADSL The result is cost savings and improved utilization of local loop bandwidth
Trang 2Soneplex/HiGain HDSL4
Soneplex/HiGain HDSL4 is the latest addition to ADC’s industry-leading solutions for DS-1 deployment Soneplex/HiGain HDSL4 is designed for applications that require span lengths beyond Carrier Service Area (CSA) range of 12kft Based upon the Spectrum Management (SM) standard T1.417, Issue 2, Soneplex/HIGain HDSL4 promotes interoperability and spectral compatibility with ADSL and other DSL technologies in the same cable bundle
Description
HDSL4 expands the capabilities of traditional HDSL and HDSL2 deployment offerings It is the latest high-bit-rate digital subscriber line technology specifically developed to transmit DS-1 signals It offers measurable advantages over HDSL and HDSL2
The first advantage is extended reach HDSL4 can be deployed beyond CSA range without
interfering with ADSL or other xDSL technologies It enables a CSA reach increase of 25% to 16kft (24 AWG) without the use of repeaters In addition, HDSL4 requires fewer repeaters in long loop applications – which means more customers are accessible without installation of additional outside plant repeaters For example, a 46kft HDSL4 application (24 AWG) requires two repeaters while HDSL technology requires three repeaters The result is fewer points of failure in the network as well
as reduced first costs and ongoing maintenance costs As compared to traditional HDSL and HDSL2 technologies, HDSL4 increases the CSA reach per span, as shown below
HDSL/HDSL2 HDSL4
A Single Span Reach
Trang 3Spectral Compatibility
The second major advantage of HDSL4 is spectral compatibility HDSL4 is designed to limit crosstalk interference with other xDSL technologies, especially with ADSL HDSL4 significantly reduces data rate degradation, bit errors, dropped service, noise, and intermittent trouble calls suffered by other xDSL services deployed in the same binder – problems which are especially significant in repeatered
deployments The data below shows ADSL downstream data rates at various loop lengths in the presence of 24 disturbers deployed with mid-span repeaters The last column shows the minimum ADSL data rate that compliant technologies must allow at that range
Since 1989, ADC has been the market leader in deployment of HDSL and HDSL2 technologies Clearly, HDSL4 is the technology choice for DS-1 transport beyond the 12kft CSA range However, it does not eliminate deployment of HDSL and HDSL2 for DS-1 transport HDSL4 is a complementary technology, offering service providers another choice for the unique DS-1 and xDSL requirements of each CSA
Length Disturbers Disturbers Disturbers Standard
ADSL Downstream Rate (Mbps) With 24 Disturbers
Features:
• Transmission at DS-1 rate (1.554 Mbps) beyond CSA reach over two unconditioned
copper pairs up to a maximum reach of 47db at 196kHz or 16kft (24 AWG)
• Spectral compatibility with xDSL technologies
• Extended reach to 16kft (24 AWG) without use of repeaters
• Extended reach to 46kft (24 AWG) with two repeaters
• Fully NEBS compliant
• Simple, compact design promotes easy installation and connections
Description
HDSL4 3192 mechanics central office module
HDSL4 220 mechanics central office module
HDSL4 DDM+ mechanics central office module
HDSL4 200 mechanics remote module
HDSL4 239 mechanics doubler module
HDSL4 central office module for Soneplex systems
Catalog Number
H4TU-C-319-L1 H4TU-C-231-L1 H4TU-C-388-L1 H4TU-R-402-L1 H4D-409-L1 SPX-H4LXCA1
O r d e r i n g I n f o r m a t i o n
Trang 4Line Powering: 0, -185, ±123 V DC (simplex over Loop 1 and Loop 2)
CO Supply: -48 V DC nominal (-42.5 V DC to -56.5 V DC )
Operating Temperature: -40ºF to +149ºF (-40ºC to +65ºC)
Operating Humidity: 5% to 95%, non-condensing
HDSL4 Line Code: 784 kbps PAM on each pair, ANSI T1.418 Issue 2
Maximum Insertion Loss: Span 1 = 47 dB at 196 kHz; Span 2 and Span 3 = 43 dB at 196 kHz
One Way DS1 Delay: <700 µsec
Wideband Jitter: <0.2 UI
Narrow Band Jitter: <0.1 UI
H4TU-C-319-L1
Dimensions (HxWxD): 4.75" x 0.63" x 10.0" (12.10 x 1.59 x 25.40 cm)
Pulse Output: 6V pk-pk pre-equalized for 0 to 655 feet
H4TU-C-231-L1
Dimensions (HxWxD): 5.9" x 1.4" x 10.0" (15.0 x 3.5 x 25.4 cm)
Pulse Output: 6V pk-pk pre-equalized for 0 to 655 feet
H4TU-C-388-L1
Dimensions (HxWxD): 3.5" x 0.72" x 10.25" (8.0 x 1.8 x 26.0 cm)
Pulse Output: 6V pk-pk pre-equalized for 0 to 655 feet
H4TU-R-402-L1
Dimensions (HxWxD): 5.6" x 0.7" x 5.6" (14.2 x 1.7 x 14.2 cm)
Pulse Output: 0 dB, -7.5 dB and -15 dB
H4D-409-L1
Dimensions (HxWxD): 2.6" x 0.75" x 6.5" (6.6 x 1.9 x 16.5 cm)
SPX-H4LXCA1
Power Consumption: 32 W with two H4D units, 12 W without doublers
Electrical Protection: Secondary surge and power cross-protection on all HDSL4 ports
(requires external primary protection)
Mounting: Soneplex Broadband or Loop Extender Chassis
HDSL4 Output: +14.1 dBm ±0.5 dBm, 135 Ω
Maximum Provisioning Loss: 45 dB at 196 kHz, 135 Ω
DS-1 Pulse Output: 6V pk-pk, 0 to 533 feet in 133-ft increments
Dimensions (HxWxD): 4.6"x 0.7"x 9.5" (11.7 x 1.7 x 24.1 cm)
Specifications